Portion of an illuminator housing



FIG. 1 is a front perspective view of a portion of an illuminator housing showing my new design,

FIG. 2 is a front elevational view thereof without the disclaimed curved element depicted in FIG. 1,

FIG. 3 is a left side elevational view thereof,

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a top view thereof.

The unbroken lines immediately adjacent the shaded areas represent the unclaimed boundaries of the claimed design, while all other broken lines are for illustrative purposes only and form no part of the claimed design. The unshown bottom and rear of the housing also form no part of the claimed design. 

The ornamental design for a portion of an illuminator housing, as shown and described. 